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SG120118A1 - A device and process for encoding audio data - Google Patents

A device and process for encoding audio data

Info

Publication number
SG120118A1
SG120118A1 SG200305637A SG200305637A SG120118A1 SG 120118 A1 SG120118 A1 SG 120118A1 SG 200305637 A SG200305637 A SG 200305637A SG 200305637 A SG200305637 A SG 200305637A SG 120118 A1 SG120118 A1 SG 120118A1
Authority
SG
Singapore
Prior art keywords
audio data
encoding audio
encoding
data
audio
Prior art date
Application number
SG200305637A
Inventor
Padhi Kabi Prakash
Kasargod Sudhir Kumar
Sapna George
Original Assignee
St Microelectronics Asia
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by St Microelectronics Asia filed Critical St Microelectronics Asia
Priority to SG200305637A priority Critical patent/SG120118A1/en
Priority to US10/940,593 priority patent/US7725323B2/en
Priority to EP04104436A priority patent/EP1517300B1/en
Priority to DE602004004846T priority patent/DE602004004846D1/en
Publication of SG120118A1 publication Critical patent/SG120118A1/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • G10L19/025—Detection of transients or attacks for time/frequency resolution switching
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/035—Scalar quantisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
SG200305637A 2003-09-15 2003-09-15 A device and process for encoding audio data SG120118A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SG200305637A SG120118A1 (en) 2003-09-15 2003-09-15 A device and process for encoding audio data
US10/940,593 US7725323B2 (en) 2003-09-15 2004-09-14 Device and process for encoding audio data
EP04104436A EP1517300B1 (en) 2003-09-15 2004-09-14 Encoding of audio data
DE602004004846T DE602004004846D1 (en) 2003-09-15 2004-09-14 Encoding of audio data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SG200305637A SG120118A1 (en) 2003-09-15 2003-09-15 A device and process for encoding audio data

Publications (1)

Publication Number Publication Date
SG120118A1 true SG120118A1 (en) 2006-03-28

Family

ID=34192350

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200305637A SG120118A1 (en) 2003-09-15 2003-09-15 A device and process for encoding audio data

Country Status (4)

Country Link
US (1) US7725323B2 (en)
EP (1) EP1517300B1 (en)
DE (1) DE602004004846D1 (en)
SG (1) SG120118A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7630902B2 (en) * 2004-09-17 2009-12-08 Digital Rise Technology Co., Ltd. Apparatus and methods for digital audio coding using codebook application ranges
US7937271B2 (en) * 2004-09-17 2011-05-03 Digital Rise Technology Co., Ltd. Audio decoding using variable-length codebook application ranges
KR100979624B1 (en) 2005-09-05 2010-09-01 후지쯔 가부시끼가이샤 Audio encoding apparatus and audio encoding method
US8332216B2 (en) * 2006-01-12 2012-12-11 Stmicroelectronics Asia Pacific Pte., Ltd. System and method for low power stereo perceptual audio coding using adaptive masking threshold
WO2007107046A1 (en) * 2006-03-23 2007-09-27 Beijing Ori-Reu Technology Co., Ltd A coding/decoding method of rapidly-changing audio-frequency signals
DE102006055737A1 (en) * 2006-11-25 2008-05-29 Deutsche Telekom Ag Method for the scalable coding of stereo signals
US8254588B2 (en) * 2007-11-13 2012-08-28 Stmicroelectronics Asia Pacific Pte., Ltd. System and method for providing step size control for subband affine projection filters for echo cancellation applications
US8630848B2 (en) 2008-05-30 2014-01-14 Digital Rise Technology Co., Ltd. Audio signal transient detection
US9159330B2 (en) * 2009-08-20 2015-10-13 Gvbb Holdings S.A.R.L. Rate controller, rate control method, and rate control program
WO2013075753A1 (en) * 2011-11-25 2013-05-30 Huawei Technologies Co., Ltd. An apparatus and a method for encoding an input signal
JP6179087B2 (en) * 2012-10-24 2017-08-16 富士通株式会社 Audio encoding apparatus, audio encoding method, and audio encoding computer program
RU169931U1 (en) * 2016-11-02 2017-04-06 Акционерное Общество "Объединенные Цифровые Сети" AUDIO COMPRESSION DEVICE FOR DATA DISTRIBUTION CHANNELS
US10339947B2 (en) * 2017-03-22 2019-07-02 Immersion Networks, Inc. System and method for processing audio data
CN112002338B (en) * 2020-09-01 2024-06-21 北京百瑞互联技术股份有限公司 Method and system for optimizing audio coding quantization times

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0559348A3 (en) * 1992-03-02 1993-11-03 AT&T Corp. Rate control loop processor for perceptual encoder/decoder
US5956674A (en) * 1995-12-01 1999-09-21 Digital Theater Systems, Inc. Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
WO2002015587A2 (en) * 2000-08-16 2002-02-21 Dolby Laboratories Licensing Corporation Modulating one or more parameters of an audio or video perceptual coding system in response to supplemental information
US7027982B2 (en) * 2001-12-14 2006-04-11 Microsoft Corporation Quality and rate control strategy for digital audio

Also Published As

Publication number Publication date
EP1517300A2 (en) 2005-03-23
DE602004004846D1 (en) 2007-04-05
US7725323B2 (en) 2010-05-25
US20050144017A1 (en) 2005-06-30
EP1517300A3 (en) 2005-04-13
EP1517300B1 (en) 2007-02-21

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